To be fair Microsoft for many years also made the DST start in the wrong week in its Windows products. If I recall correctly, it required a new law from our Government to make the DST more predictable, so in the last few years Windows got it right.

I don't know if Android will make the DST start in the wrong weekend or if it won't work at all. How can I correct it?

@AlEverett Apparently no, is there anything I can set to make it happen?
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Jader DiasOct 22 '12 at 10:37

It could be that the Telephony layer does not understand the semantics of NITZ which is transmitted over the cellular network... this is highly dependent on the RIL layer to handle this for you.
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t0mm13bMar 19 '13 at 16:41

4 Answers
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you should change the clock settings in your router in order to get this fixed, as your time and date configurations come directly from it because Nexus 7 doesn't have a SIM card from which it would obtain local time.